Decaying

atrophy
degeneration as the result of disuse, malnutrition, etc.
biodegradability
disposition to disintegrate as the result of natural processes. — biodegradable,adj.caducity
the condition of being perishable. —caducous, adj.cariosity
the condition of being decayed or carious, especially with regard to teeth.
catabolism
the destructive process of metabolism in which living matter is turned into waste. —catabolic, adj.cataclasm
a breaking down; disruption. —cataclasmic, n.
catalysisRare. the process of decay or deterioration. See also change.
cataplasia
degeneration of cells or tissues. —cataplastic,adj.cataplasis
the stage of decline in organic development.
cytolysis
the degeneration of cells. —cytolytic, adj.degradability
the state or quality of being susceptible to breakdown or decomposition. —degradable,adj.deteriorism
the belief that the universe is gradually breaking down. See also meliorism.
fugacity
the condition of being fugacious or transitory; evanescence. —fugacious, adj.geratology
the branch of biology that studies aging and its phenomena. Also gereology. —geratologic, geratologous, adj.histolysis
the disintegration or dissolution of organic tissues. —histolytic,adj.labefaction
the process of coming apart, especially falling into ruin or decay.
lysis
the decomposition of cells by antibodies called lysins.
myoatrophy
atrophy or wasting away of the muscles.
necrosis
the death or decay of body tissue, the result of loss of blood supply or trauma. —necrotic, adj.pejoration
depreciation, loss, or diminution in value, quality, etc.
photolysis
the breakdown of matter or materials under the influence of light. —photolytic, adj.putrescence1. the state or process of rotting or putrefying.
2. rotting or putrefying matter. —putrescent, adj.symptosis
a gradual wasting away of the body or of any organ or part of the body.
syntexis
the wasting of the body, as in consumption. —syntectic, syntectical, adj.tabescence1. the process of emaciation or wasting of the body.
2. the condition of being wasted or in decay, especially as a gradual process. —tabescent, adj.tabitude
the state of being affected by tabes, i.e., gradual wasting or decay.